Analysis

  • max time kernel
    147s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23/03/2024, 11:36

General

  • Target

    ff576bc35cf98eee07585ae5b7c88efc.exe

  • Size

    2.0MB

  • MD5

    ff576bc35cf98eee07585ae5b7c88efc

  • SHA1

    df8c450c6966db774d06ab8d2feeb97374cda260

  • SHA256

    5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3

  • SHA512

    a5303ab816eb67f3d517757d07fc8cd1b8a2e6bd4869ca9744405c9ea75c95f5f058301a9ce7ebf99e407504a51d6c879b06018f44dfde24b38d3c1eed815317

  • SSDEEP

    49152:32pu+svTDBZMqdkzssuHTSJf20pom5PRXLFzGHWkme7D:mpfMTDBmeUss8TS52teJXc2kmc

Malware Config

Extracted

Family

socks5systemz

C2

http://bhevbbv.com/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c644db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668ff612c8ec92

Signatures

  • Detect Socks5Systemz Payload 2 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ff576bc35cf98eee07585ae5b7c88efc.exe
    "C:\Users\Admin\AppData\Local\Temp\ff576bc35cf98eee07585ae5b7c88efc.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2884
    • C:\Users\Admin\AppData\Local\Temp\is-T4GV8.tmp\ff576bc35cf98eee07585ae5b7c88efc.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-T4GV8.tmp\ff576bc35cf98eee07585ae5b7c88efc.tmp" /SL5="$7011E,1756523,54272,C:\Users\Admin\AppData\Local\Temp\ff576bc35cf98eee07585ae5b7c88efc.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2504
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2736
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:936

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

          Filesize

          839KB

          MD5

          465ddd2be94c21ab8c808a852b89ad60

          SHA1

          08384f40ae64eefba63ed1277e0fec0134df3d4b

          SHA256

          db76201a88f09274a2777291ec4821669e3e939a84bfec8d6903316ddb4cd104

          SHA512

          8fdae657e14a56448d3be1807b8c7d9dd8b7b83fec657c1b8177ae1c03ccf53ad34098686a77cb4fd7611db1267b87b19343580a2203bf31feea75f77fbfa2ba

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

          Filesize

          2.1MB

          MD5

          77c8e87124cd5534656bf23a7bc21509

          SHA1

          1531df44ea2092e5e0f89a12a3e77a19400d9451

          SHA256

          c12f75445e83c4dbe480cc92afc4bdd584f6489811b78f7041fb6fd06488a7aa

          SHA512

          7389ddaa558867edf903b3e81bc432833dc055324a52f3e56638ac6fee1834b557a5e2b96266c9ed7f969dd7f51a6b6dc820b5b1f58b88a0972f7192647224e7

        • \Users\Admin\AppData\Local\Color Picker\colorpicker.exe

          Filesize

          1.0MB

          MD5

          8bf138c23122a884c09a0d656d10061d

          SHA1

          351cbfedab6d31a066bd86fe6b996a281d29e076

          SHA256

          1a0b031e4ec7a6d4aad673c2728b4550bdd476aa07a3d9f3df9bc6d5afe82d68

          SHA512

          0e3844b87bdccc98942edc8bfb95685507ac8aeb9610177b9c190d14ea01e7eccf0227e09f1c9ff27b6c82da3d995fe891212e0662d5976197958627e097eac8

        • \Users\Admin\AppData\Local\Temp\is-P5TMA.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-P5TMA.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Local\Temp\is-T4GV8.tmp\ff576bc35cf98eee07585ae5b7c88efc.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

        • memory/936-89-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-88-0x0000000002640000-0x00000000026E2000-memory.dmp

          Filesize

          648KB

        • memory/936-98-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-95-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-92-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-105-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-75-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-51-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-102-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-85-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-56-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-82-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-76-0x0000000002640000-0x00000000026E2000-memory.dmp

          Filesize

          648KB

        • memory/936-61-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-62-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-65-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-66-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-69-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/936-72-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2504-57-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2504-58-0x0000000003500000-0x0000000003711000-memory.dmp

          Filesize

          2.1MB

        • memory/2504-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2504-42-0x0000000003500000-0x0000000003711000-memory.dmp

          Filesize

          2.1MB

        • memory/2504-12-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2736-49-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2736-46-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2736-45-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2736-44-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2884-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2884-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB